Transformations Review

A picture measures 3 in. by 5 in.  If it is dilated by a scale factor of 4, how many times bigger will the area of the image be than the preimage?

• 4
• 16
• 8
• 60

When you translate, you ______ a number to x and y.

• Add or subtract
• Multiply or divide
• Add or multiply
• Subtract or divide

When you translate, (x-4, y) will move _____.

• 4 units right
• 4 units left
• 4 units up
• 4 units down

When you translate, (x, y + 6) will move _____.

• 6 units right
• 6 units left
• 6 units up
• 6 units down

Write a rule for the translation.

•  (x - 1, y + 2)
•  (x - 2, y + 1)
•  (x + 2, y - 1)
• (x + 1, y - 2)

Identify the transformation from ABC to A'B'C'.

• 90^o clockwise rotation
• 90^o counter clockwise rotation
• Reflection across the y-axis
• Reflection across the x-axis

Identify the transformation from ABCD to A'B'C'D'.

• Translation
• Reflection across the y-axis
• Reflection across the x-axis
• 90^o counter clockwise Rotation

Point (-5,2) is reflected over the y axis.  Where is the new point located?

• (5, 2)
• (-5, -2)
• (-5, 2)
• (5, -2)

Which rule would result in a translation of 2 units left and 3 units up?

• (x, y) → (2x, 3y)
• (x, y) → (x - 2, y + 3)
• (x, y) → (-x, -y)
• (x, y) → (x + 2, y - 3)

Identify the transformation from ABC to A'B'C'.

• (x + 8, y + 4)
• (x - 8, y - 4)
• (x + 4, y + 8)
• (x - 4, y - 8)